Plastic composition.



COATING R PLASTIC. I

' STATES P TENT OFFICE.

WILLIAM W. IBEEBE AND E. DAVIS, OF LOS ANGELES, CALIFORNIA.

PLASTIC COMPOSITION.

To all whom it may concern Be it known that we, WILLIAM W. Bnnnn and EDWIN E. DAVIS, citizens of the United States, residing at Los Angeles, in the county of Los Angeles, State of California, have invented a new and useful Plastic Composition, of which the following is a specification.

This invention relates to a plastic composition, one of the objects of the invention being to provide a mixture which can be molded readily into different shapes, to form fence posts, flower pots, door casings, and

like devices.

A further object is to provide a plastic composition which permits nails, staples and the like to be inserted readily into the articles made from the composition.

Another object is to provide a composition which is fireproof and waterproof.

VVit-h the foregoing and other objects in view the invention consists of the following ingredients combined substantially in the proporticns stated, viz: Pumice (crushed to a mesh from six to thirty l- -one and one half parts. G sumone and one half parts. Portland cefi i me part. To each cubic 0c 0 a mix ure of the above ingredients are added ten gallons of a mixture of sa- 3Qlammoniac and water. one pound of salammcmac elng use 0 each one hundred cement one part, the same forming a ry 80 pounds of water.

In preparing the composition, the pumice crushed to the mesh stated is mixed with the plaster and cement. The salammoniac is then mixed with the water in the proportion stated after which ten gallons of the liquid mixture are thoroughly mixed with each cubic foot of the dry mixture. With the product thus obtained various articles such as fence posts, interior ornamental work, flower pots, vases, urns, door casings, laundry and toilet HBREQRQQS- and the like, can be molded. The 0 jects thus produced can be rendered perfectly smooth by means 1 of sandpaper and can be suitably waterprooifed and paintedin the same manner as woo Specification of Letters Patent.

Patented Feb. 1, 1916.

Application filed April 9, 1915. Serial No. 20,276.

The use of pumice as one of the main ingredientsis advantageous because it reduces the weight of the manufactured article and allows nails, staples, screws, etc., to be in-, serted readily into the article and also per- This it to he sriocthed by means of sandpaper. The gypsum assists the mixture jn settingguickly s that tlienumber of forms necessary to produce articles is materially reduced and the cost of manufacture correspondingly lessened. The Portland cement constitutes the bin der between the other ingredients, giving the article hardness and strength while the salammoniac as-' sists in effecting a quick setting of the mixture, causing the cement to set as quickly as the plaster.

Articles produced by the means herein described will be found to be entirely water and fire proof, especially if a suitable water proofing mixture is applied to the surface of the produced article.

In addition to the articles hereinbefore mentioned, it might be stated that the composition herein described will be found especially useful in the manufacture of caskets, cofiins, etc.

What is claimed is A plastic composition consisting of crushed umice one and onehalf parts, gun one and one half parts, and Port an mixture, combined with a wet mixture of salammoniac one pound and water one hunre poun s, ten gallons of the wet mixture being used with each cubic foot of the dry mixture.

In testimony that we claim the foregoing as our own, we have hereto aflixed our signatures in the presence of two witnesses.

\VILLIAM W. BEEBE. EDWIN E. DAVIS.

Witnesses:

B. L. GARE, W. A. Yotmo.

Copies of this patent may be obtained for fire cents each, by addressing the Commissioner of Patents,

Washinzton. D. 0. 

